{"term":{"id":"09318","title":"chemical state plot","longtitle":"IUPAC Gold Book - chemical state plot","doi":"10.1351\/goldbook.09318","code":"09318","status":"current","synonym":"<em>synonym<\/em>: Wagner plot","definitions":[{"id":1,"text":"In X-ray photoelectron spectroscopy, plot of the measured kinetic energy of a sharp Auger electron peak versus the binding energy of a photoelectron peak for the same element.","notes":{"1":"Plots are usually made for a given element that can exist in different chemical states. Such plots are helpful in defining the state for an unknown sample, where measurements of the binding energy alone are inadequate.","2":"The binding energy is usually plotted on the abscissa, with values decreasing towards the right."},"sources":["PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1822 (https:\/\/doi.org\/10.1515\/pac-2019-0404)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/09318\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/09318\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/09318\/plain"},"citation":"Citation: 'chemical state plot' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351\/goldbook.09318","license":"The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/) for individual terms.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2026-04-18T11:53:02+00:00"}}